It is taken for granted that medical technologies will advance apace in the future, permitting rapid healing and perhaps even shaping of the human body. This submission is to provide possible flavors for that medicine to come in.

"He’s dead, Sir Paladin." "... What?" "Hens-bane, my Lord, a false tooth. Not even our best interrogators could get an answer from him now." "Bring the corpse to me. The veil of death will be pierced."

One of the common variations on magic is the concept of ‘sword mages’ or ‘knight mages’. We all know and love them as the folks in full plate that split globes in twain with flaming swords, before twirling around to change their flame sword to an ice sword so they can stab the flaming angel of vengeance in the chest to maximum effect.

You find a patch of edible funghi. They taste well and all, no ill effects. UNLESS you consume some beverage, even 3 (three) days after eating it. Then you become really sick with pains, vomiting, all the fancy stuff. As a gift or good meal, it could be a cruel joke or to make sure the heroes spend their time focused on the mission. And the fine soup you had in the inn yesterday could have some in.
(Inspired through a real-world fungus. Was really used to cure alcoholism.)